A constituent system (also subsystem or component system) of an SoS forms a component or part of it. It can compose an organisational, human or technological unit, e.g. a division in an enterprise or an information system.
Realtionships between the constituent systems with respect to their governance, technology standard operating procedures, training and usage are crucial for a successfull System of Systems implementation.
Constituent systems of an SoS have the following characteristics:
- Operational independence
- Independent governance
- High heterogeneity
- High level of reuse
These characteristics are partly transferred to the corresponding SoS.